85208807 has 4 divisors (see below), whose sum is σ = 85821960. Its totient is φ = 84595656.

The previous prime is 85208723. The next prime is 85208821. The reversal of 85208807 is 70880258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70880258 = 2 ⋅35440129.

It is a cyclic number.

It is not a de Polignac number, because 85208807 - 2⁸ = 85208551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85204807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306368 + ... + 306645.

It is an arithmetic number, because the mean of its divisors is an integer number (21455490).

Almost surely, 2^85208807 is an apocalyptic number.

85208807 is a deficient number, since it is larger than the sum of its proper divisors (613153).

85208807 is a wasteful number, since it uses less digits than its factorization.

85208807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613152.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 85208807 is about 9230.8616607552. The cubic root of 85208807 is about 440.0427076314.

The spelling of 85208807 in words is "eighty-five million, two hundred eight thousand, eight hundred seven".